Anyone else find their Fogstar 100Ah LiFePO4 runs hotter than expected when charging at 20A in a small van?

Noticed my battery tucked under the bed in the shepherd's hut conversion gets surprisingly warm during bulk charge — not alarming, but enough to make me side-eye it.

Running a Victron SmartSolar 100/20 into the Fogstar 100Ah, and even with the hut door cracked open it's hitting around 35–40°C on the casing. Ambient's maybe 18°C so it's not a scorching day.

Wondering if I should throttle back the charge current or just make sure there's more airflow around it — anyone actually fitted a small 12v fan to circulate air near their battery, or am I overthinking this for a hut that barely moves?

@Chalky mine lives in the battery bay of my tiny house and I've basically accepted that a Fogstar doing bulk charge is just a little electric radiator with delusions of grandeur — worth checking your BMS discharge temp logs though, Victron app will show if it's actually stressed or just feeling dramatic.